Detailed Answer: 

The Tabs module displays horizontal or vertical tabbed content, ideal for inserting sets of content into a small space.

Items tab

In the Items section, you can add, edit, and remove tab items.

Content Source

The content source allows you to determine what content is displayed. You can choose between posts and custom content.

Post

The Post content source option allows you to automatically populate the Tabs module with pages, posts, or custom post types.

• Post Type
  Select the post type you wish to populate the Tabs module with. You can choose pages, posts, or a custom post type, such as WooCommerce Products or a custom post type that you created yourself.
• Posts Per Page
  Determines how many tabs items are created. Each item contains one page, post, or custom post type. The default is 5.
• Order
  Choose between descending or ascending.
• Order By
  The choices are: Author, Comment count, Date, Date last modified, ID, Menu order, Meta value (alphabetic or numeric), Random, Title, Selection order.
  See the Order By section in the Post module for more information.
• Filter By
  The Filter section allows you to include or exclude a set of posts, pages or custom post types by title, and taxonomy.
  See the Filter section in the Post module article for more information regarding the filter options.

Custom Content

The Custom Content source option allows you to add your own content using the WordPress classic editor or populate the tab item with content from a saved row, column, module, or template.

Edit items

When you first add an Tabs module to your layout, a blank item will be created for you to edit. To edit an item, click the Edit Items link.

Add items

To add more tab items, click the Add Item button.

Label

Name your tab item.

Content Type

The choices are: Saved Row, Saved Column, Saved Module, Saved Template, and Custom Content. The Saved content drop down menu automatically lists all previously saved rows, columns, modules, or templates when you select Saved content.

The Custom Content option allows you to add your own content using the WordPress classic editor.

Content

Use the WordPress classic editor to add text to your tab item. You can also add images using the Add Media button.

Style tab

In the Style tab, you can change the color of the tab items, such as the text and tab background color.

Layout

• Layout
  You can choose a horizontal layout or you can choose a vertical layout.
  
  

  INFO

  As the screen width shrinks, the tabs turn into an accordion layout.

• Background Color
  Set the background color for the tab.
• Border Color
  Set the border color.
• Border Width
  Set the border width in pixels.
• Active Tab
  Set which tab should be active. The value should not exceed the total number of tab items.
• Tab(s) Status on Mobile
  Control how the tabs display on mobile devices. You can choose between Keep Active Tab Open, and Close All Tabs.

Label

• Inactive Label Text Color
  Set the text color for the inactive tab(s).
• Inactive Label Background Color
  Set the background color for the inactive tab(s).
• Active Label Color
  Set the text color for the active tab.
• Active Label Background Color
  Set the background color for the active tab.
• Padding
  Set a specific padding value in pixels for the tab label. Click the Link Value icon to automatically make all four padding values the same.
• Typography
  Set the font size, family, line-height and more for the tab label. See the Typography article for more information.

Content

• Text Color
  Set the text color of the tab content.
• Padding
  Set a specific padding value in pixels for the tab content. Click the Link Value icon to automatically make all four padding values the same.
• Typography
  Set the font size, family, line-height and more for the tab content. See the Typography article for more information.

Advanced

There are all the usual Advanced tab settings for margins, visibility, animations, and advanced HTML settings.